Example usage for org.apache.commons.fileupload FileItemStream isFormField

Introduction

In this page you can find the example usage for org.apache.commons.fileupload FileItemStream isFormField.

Prototype

boolean isFormField();

Source Link

Document

Determines whether or not a FileItem instance represents a simple form field.

Usage

From source file:org.owasp.esapi.waf.internal.InterceptingHTTPServletRequest.java

public InterceptingHTTPServletRequest(HttpServletRequest request) throws FileUploadException, IOException {

    super(request);

    allParameters = new Vector<Parameter>();
    allParameterNames = new Vector<String>();

    /*//w  w  w. ja v a  2 s  .  c  o  m
     * Get all the regular parameters.
     */

    Enumeration e = request.getParameterNames();

    while (e.hasMoreElements()) {
        String param = (String) e.nextElement();
        allParameters.add(new Parameter(param, request.getParameter(param), false));
        allParameterNames.add(param);
    }

    /*
     * Get all the multipart fields.
     */

    isMultipart = ServletFileUpload.isMultipartContent(request);

    if (isMultipart) {

        requestBody = new RandomAccessFile(File.createTempFile("oew", "mpc"), "rw");

        byte buffer[] = new byte[CHUNKED_BUFFER_SIZE];

        long size = 0;
        int len = 0;

        while (len != -1 && size <= Integer.MAX_VALUE) {
            len = request.getInputStream().read(buffer, 0, CHUNKED_BUFFER_SIZE);
            if (len != -1) {
                size += len;
                requestBody.write(buffer, 0, len);
            }
        }

        is = new RAFInputStream(requestBody);

        ServletFileUpload sfu = new ServletFileUpload();
        FileItemIterator iter = sfu.getItemIterator(this);

        while (iter.hasNext()) {
            FileItemStream item = iter.next();
            String name = item.getFieldName();
            InputStream stream = item.openStream();

            /*
             * If this is a regular form field, add it to our
             * parameter collection.
             */

            if (item.isFormField()) {

                String value = Streams.asString(stream);

                allParameters.add(new Parameter(name, value, true));
                allParameterNames.add(name);

            } else {
                /*
                 * This is a multipart content that is not a
                 * regular form field. Nothing to do here.
                 */

            }

        }

        requestBody.seek(0);

    }

}

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From source file:org.plista.kornakapi.web.servlets.BatchAddCandidatesServlet.java

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    int batchSize = getParameterAsInt(request, Parameters.BATCH_SIZE, Parameters.DEFAULT_BATCH_SIZE);

    ServletFileUpload upload = new ServletFileUpload();

    FileItemIterator fileItems;// w ww .  java2  s  .c om
    InputStream in = null;

    boolean fileProcessed = false;

    Storage storage = this.getDomainIndependetStorage();

    try {
        fileItems = upload.getItemIterator(request);
        while (fileItems.hasNext()) {

            FileItemStream item = fileItems.next();

            if (Parameters.FILE.equals(item.getFieldName()) && !item.isFormField()) {

                in = item.openStream();
                Iterator<Candidate> candidates = new CSVCandidateFileIterator(in);

                storage.batchAddCandidates(candidates, batchSize);

                fileProcessed = true;

                break;
            }
        }
    } catch (FileUploadException e) {
        throw new IOException(e);
    } finally {
        Closeables.closeQuietly(in);
    }

    if (!fileProcessed) {
        throw new IllegalStateException("Unable to find supplied data file!");
    }
}

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From source file:org.plista.kornakapi.web.servlets.BatchDeleteCandidatesServlet.java

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    int batchSize = getParameterAsInt(request, Parameters.BATCH_SIZE, Parameters.DEFAULT_BATCH_SIZE);

    ServletFileUpload upload = new ServletFileUpload();

    FileItemIterator fileItems;// w ww .  j ava  2 s .  c o m
    InputStream in = null;

    boolean fileProcessed = false;

    Storage storage = this.getDomainIndependetStorage();
    try {
        fileItems = upload.getItemIterator(request);
        while (fileItems.hasNext()) {

            FileItemStream item = fileItems.next();

            if (Parameters.FILE.equals(item.getFieldName()) && !item.isFormField()) {

                in = item.openStream();
                Iterator<Candidate> candidates = new CSVCandidateFileIterator(in);

                storage.batchDeleteCandidates(candidates, batchSize);

                fileProcessed = true;

                break;
            }
        }
    } catch (FileUploadException e) {
        throw new IOException(e);
    } finally {
        Closeables.closeQuietly(in);
    }

    if (!fileProcessed) {
        throw new IllegalStateException("Unable to find supplied data file!");
    }
}

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From source file:org.plista.kornakapi.web.servlets.BatchSetPreferencesServlet.java

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    int batchSize = getParameterAsInt(request, Parameters.BATCH_SIZE, Parameters.DEFAULT_BATCH_SIZE);

    ServletFileUpload upload = new ServletFileUpload();

    FileItemIterator fileItems;//  ww  w . ja  va2s .c  o m
    InputStream in = null;

    boolean fileProcessed = false;

    Storage storage = this.getDomainIndependetStorage();

    try {
        fileItems = upload.getItemIterator(request);
        while (fileItems.hasNext()) {

            FileItemStream item = fileItems.next();

            if (Parameters.FILE.equals(item.getFieldName()) && !item.isFormField()) {

                in = item.openStream();
                Iterator<Preference> preferences = new CSVPreferenceFileIterator(in);

                storage.batchSetPreferences(preferences, batchSize);

                fileProcessed = true;

                break;
            }
        }
    } catch (FileUploadException e) {
        throw new IOException(e);
    } finally {
        Closeables.closeQuietly(in);
    }

    if (!fileProcessed) {
        throw new IllegalStateException("Unable to find supplied data file!");
    }
}

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From source file:org.polymap.rap.updownload.upload.FileUploadServlet.java

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    try {/*  w ww .  j a v a2s  .c o m*/
        FileItemIterator it = fileUpload.getItemIterator(req);
        while (it.hasNext()) {
            FileItemStream item = it.next();
            String name = item.getFieldName();
            InputStream in = item.openStream();
            try {
                if (item.isFormField()) {
                    log.info("Form field " + name + " with value " + Streams.asString(in) + " detected.");
                } else {
                    log.info("File field " + name + " with file name " + item.getName() + " detected.");

                    String key = req.getParameter("handler");
                    assert key != null;
                    IUploadHandler handler = handlers.get(key);
                    // for the upload field we always get just one item (which has the length of the request!?)
                    int length = req.getContentLength();
                    handler.uploadStarted(item.getName(), item.getContentType(), length, in);
                }
            } finally {
                IOUtils.closeQuietly(in);
            }
        }
    } catch (Exception e) {
        log.warn("", e);
        throw new RuntimeException(e);
    }
}

---

From source file:org.polymap.rap.updownload.upload.UploadService.java

@Override
public void service(HttpServletRequest request, HttpServletResponse response)
        throws IOException, ServletException {
    try {//  www .ja  va 2 s.  co  m
        FileItemIterator it = fileUpload.getItemIterator(request);
        while (it.hasNext()) {
            FileItemStream item = it.next();

            try (InputStream in = item.openStream()) {
                if (item.isFormField()) {
                    log.info("Form field " + item.getFieldName() + " with value " + Streams.asString(in)
                            + " detected.");
                } else {
                    log.info("File field " + item.getFieldName() + " with file name " + item.getName()
                            + " detected.");

                    String handlerId = request.getParameter(ID_REQUEST_PARAM);
                    assert handlerId != null;
                    IUploadHandler handler = handlers.get(handlerId);
                    ClientFile clientFile = new ClientFile() {
                        @Override
                        public String getName() {
                            return item.getName();
                        }

                        @Override
                        public String getType() {
                            return item.getContentType();
                        }

                        @Override
                        public long getSize() {
                            // for the upload field we always get just one item (which has the length of the request!?)
                            return request.getContentLength();
                        }
                    };
                    handler.uploadStarted(clientFile, in);
                }
            }
        }
    } catch (Exception e) {
        log.warn("", e);
        throw new RuntimeException(e);
    }
}

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From source file:org.rapidcontext.core.web.Request.java

/**
 * Returns the next available file item stream in the request.
 * If the request is not a file upload request or no further
 * files are available, null will be returned. Note that file
 * upload requests must be handled differently from ordinary
 * requests, since the normal request parameter access is
 * limited to query parameters. Also, the file items returned
 * from this method are controlled to be actual files, and any
 * other request parameters are simply ignored.<p>
 *
 * The recommended way to implement file uploads is by sending
 * them as the sole request parameter in a form and storing the
 * file content for later processing. Preferably the form
 * posting is also performed from an IFRAME in order to process
 * in the background./*w  w w. j a v  a 2 s .  c  o m*/
 *
 * @return the next file item stream, or
 *         null if none is available
 *
 * @throws IOException if the file upload
 */
public FileItemStream getNextFile() throws IOException {
    if (isFileUpload() && fileIter == null) {
        try {
            fileIter = new ServletFileUpload().getItemIterator(request);
        } catch (FileUploadException e) {
            throw new IOException("failed to parse file upload: " + e.getMessage());
        }
    }
    if (fileIter != null) {
        try {
            while (fileIter.hasNext()) {
                FileItemStream item = fileIter.next();
                if (!item.isFormField()) {
                    return item;
                }
            }
        } catch (FileUploadException e) {
            throw new IOException("failed to parse file upload: " + e.getMessage());
        }
    }
    return null;
}

---

From source file:org.sigmah.server.endpoint.export.sigmah.ExportModelServlet.java

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    if (ServletFileUpload.isMultipartContent(req)) {

        final Authentication authentication = retrieveAuthentication(req);
        boolean hasPermission = false;

        if (authentication != null) {
            final User user = authentication.getUser();
            ProfileDTO profile = SigmahAuthDictionaryServlet.aggregateProfiles(user, null, injector);
            hasPermission = ProfileUtils.isGranted(profile, GlobalPermissionEnum.VIEW_ADMIN);
        }//  w w  w.jav  a2s.c  o  m

        if (hasPermission) {

            final ServletFileUpload fileUpload = new ServletFileUpload();

            final HashMap<String, String> properties = new HashMap<String, String>();
            byte[] data = null;

            try {
                final FileItemIterator iterator = fileUpload.getItemIterator(req);

                // Iterating on the fields sent into the request
                while (iterator.hasNext()) {

                    final FileItemStream item = iterator.next();
                    final String name = item.getFieldName();

                    final InputStream stream = item.openStream();

                    if (item.isFormField()) {
                        final String value = Streams.asString(stream);
                        LOG.debug("field '" + name + "' = '" + value + '\'');

                        // The current field is a property
                        properties.put(name, value);

                    } else {
                        // The current field is a file
                        LOG.debug("field '" + name + "' (FILE)");

                        final ByteArrayOutputStream serializedData = new ByteArrayOutputStream();
                        long dataSize = 0L;

                        int b = stream.read();

                        while (b != -1 && dataSize < MAXIMUM_FILE_SIZE) {
                            serializedData.write(b);

                            dataSize++;
                            b = stream.read();
                        }

                        stream.close();

                        data = serializedData.toByteArray();
                    }
                }

            } catch (FileUploadException ex) {
                LOG.warn("Error while receiving a serialized model.", ex);
            }

            if (data != null) {
                // A file has been received

                final String type = properties.get("type");
                final ModelHandler handler = handlers.get(type);

                if (handler != null) {

                    if (handler instanceof ProjectModelHandler) {
                        final String projectModelTypeAsString = properties.get("project-model-type");
                        try {
                            final ProjectModelType projectModelType = ProjectModelType
                                    .valueOf(projectModelTypeAsString);
                            ((ProjectModelHandler) handler).setProjectModelType(projectModelType);
                        } catch (IllegalArgumentException e) {
                            LOG.debug("Bad value for project model type: " + projectModelTypeAsString, e);
                        }
                    }

                    final ByteArrayInputStream inputStream = new ByteArrayInputStream(data);

                    try {
                        handler.importModel(inputStream, injector.getInstance(EntityManager.class),
                                authentication);

                    } catch (ExportException ex) {
                        LOG.error("Model import error, type: " + type, ex);
                        resp.sendError(500);
                    }

                } else {
                    LOG.warn("The asked model type (" + type + ") doesn't have any handler registered.");
                    resp.sendError(501);
                }
            } else {
                LOG.warn("No file has been received.");
                resp.sendError(400);
            }
        } else {
            LOG.warn("Unauthorized access to the import service from user " + authentication);
            resp.sendError(401);
        }

    } else {
        LOG.warn("The request doesn't have the correct enctype.");
        resp.sendError(400);
    }
}

---

From source file:org.sigmah.server.file.util.MultipartRequest.java

public void parse(MultipartRequestCallback callback)
        throws IOException, FileUploadException, StatusServletException {
    if (!ServletFileUpload.isMultipartContent(request)) {
        LOGGER.error("Request content is not multipart.");
        throw new StatusServletException(Response.SC_PRECONDITION_FAILED);
    }//from  ww  w.j av a 2  s  .co  m

    final FileItemIterator iterator = new ServletFileUpload(new DiskFileItemFactory()).getItemIterator(request);
    while (iterator.hasNext()) {
        // Gets the first HTTP request element.
        final FileItemStream item = iterator.next();

        if (item.isFormField()) {
            final String value = Streams.asString(item.openStream(), "UTF-8");
            properties.put(item.getFieldName(), value);

        } else if (callback != null) {
            callback.onInputStream(item.openStream(), item.getFieldName(), item.getContentType());
        }
    }
}

---

From source file:org.sigmah.server.servlet.ImportServlet.java

private byte[] readFileAndProperties(final HttpServletRequest request, final Map<String, String> properties)
        throws FileUploadException, IOException {
    byte[] data = null;
    final ServletFileUpload fileUpload = new ServletFileUpload();

    final FileItemIterator iterator = fileUpload.getItemIterator(request);

    // Iterating on the fields sent into the request
    while (iterator.hasNext()) {

        final FileItemStream item = iterator.next();
        final String name = item.getFieldName();

        final InputStream stream = item.openStream();

        if (item.isFormField()) {

            final String value = Streams.asString(stream);

            LOG.debug("field '" + name + "' = '" + value + '\'');

            // The current field is a property
            properties.put(name, value);

        } else {//  w ww  .  j ava 2s.com
            // The current field is a file
            LOG.debug("field '" + name + "' (FILE)");

            final ByteArrayOutputStream serializedData = new ByteArrayOutputStream();
            long dataSize = 0L;

            int b = stream.read();

            while (b != -1 && dataSize < MAXIMUM_FILE_SIZE) {
                serializedData.write(b);

                dataSize++;
                b = stream.read();
            }

            stream.close();

            data = serializedData.toByteArray();
        }
    }

    return data;
}

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